Filed under Visualisation …

Building on yesterday’s post about my London affordability maps, here are the equivalent maps for the Manchester area (sorry Liverpool, I’ll get there!) from 1997 and 2012. It’s obviously a very different picture in terms of price, volume and distribution; these differences were well-known anecdotally but a lot of the detail was hidden until the Land Registry opened up its pricing data and, for my money, this represents one of the most useful and timely open data sets available.

Last night I discovered how many of my friends watch C4’s Dispatches since quite a few of them texted me to say that they had seen me talking about property affordability on “The Great British Property Divide”. However, since Dispatches has to somehow keep the running time down to just 30 minutes, there’s not much of a chance in the show to really explore the data underpinning my chat with Morland. So with that it mind, below are links to A0-sized static data visualisations.

One of the known problems with choropleth maps is that small zones, even if they contain very significant values, tend to get lost in amongst much larger zones. A current example is that the ridings in London are much smaller than those outside of London, so it can be hard to tell what’s happening in the capital if you are looking at a map of the entire UK. One solution to this is the hexagonal bin. Continue reading →

MapThing allows you to perform a range of useful mapping (in the geographical sense) functions within Processing and offers a collection of classes for reading ESRI-compliant Shape files (a.k.a. shapefiles), CSV point data, and GPX files, and then displaying them as part of a sketch. Continue reading →